IDYA's three largest insider shareholders as of March 23, 2026 are Yujiro S Hata (President And Ceo, 690.70K shares), Michael P. Dillon (Svp, Chief Scientific Officer, 78.79K shares), Jason Throne (Chief Legal Officer, 63.48K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Yujiro S Hata | President And Ceo | 690,695 | 0 | 19 Feb, 2025 |
| Michael P. Dillon | Svp, Chief Scientific Officer | 78,789 | 0 | 06 Oct, 2021 |
| Jason Throne | Chief Legal Officer | 63,484 | 0 | 27 Jun, 2024 |
| Jeffrey Stein | 54,281 | 0 | 02 Mar, 2026 | |
| Briseno Andres Ruiz | See Remarks | 26,466 | 0 | 02 Feb, 2026 |
| Paul A. Stone | Chief Financial Officer | 9,303 | 0 | 31 Aug, 2023 |
| Douglas B. Snyder | Svp, General Counsel | 2,080 | 0 | 02 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2026 | Jeffrey Stein | Common Stock | A | 50,000 | $32.96 | 54,281 | D | P |
| 30 Jan, 2026 | Joshua Bleharski | Stock Option (right to buy) | A | 170,000 | $0.00 | 170,000 | D | A |
| 30 Jan, 2026 | Yujiro S Hata | Stock Option (right to buy) | A | 600,000 | $0.00 | 600,000 | D | A |
| 29 Nov, 2024 | Briseno Andres Ruiz | Common Stock | A | 682 | $23.26 | 25,213 | D | A |
| 30 May, 2025 | Douglas B. Snyder | Common Stock | A | 1,039 | $16.91 | 1,039 | D | A |
| 30 Jan, 2026 | Michael Anthony White | Stock Option (right to buy) | A | 190,000 | $0.00 | 190,000 | D | A |
| 30 Jan, 2026 | Stuart Dorman | Stock Option (right to buy) | A | 155,000 | $0.00 | 155,000 | D | A |
| 30 Jan, 2026 | Darrin Beaupre | Stock Option (right to buy) | A | 175,000 | $0.00 | 175,000 | D | A |
| 28 Nov, 2025 | Douglas B. Snyder | Common Stock | A | 1,041 | $16.91 | 2,080 | D | A |
| 28 Nov, 2025 | Briseno Andres Ruiz | Common Stock | A | 1,253 | $16.91 | 26,466 | D | A |
| 30 Jan, 2026 | Douglas B. Snyder | Stock Option (right to buy) | A | 130,000 | $0.00 | 130,000 | D | A |
| 30 Jan, 2026 | Briseno Andres Ruiz | Stock Option (right to buy) | A | 80,000 | $0.00 | 80,000 | D | A |
| 24 Jun, 2025 | Scott W Morrison | Stock Option (right to buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 24 Jun, 2025 | Catherine J Mackey | Stock Option (right to buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 24 Jun, 2025 | Malcolm Garret Hampton | Stock Option (right to buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 24 Jun, 2025 | Wendy L Yarno | Stock Option (right to buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 24 Jun, 2025 | Terry J Rosen | Stock Option (right to buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 24 Jun, 2025 | Jeffrey Stein | Stock Option (right to buy) | A | 20,000 | $0.00 | 20,000 | D | A |
| 27 Feb, 2025 | Stuart Dorman | Stock Option (right to buy) | A | 15,000 | $0.00 | 15,000 | D | A |
| 27 Feb, 2025 | Darrin Beaupre | Stock Option (right to buy) | A | 185,000 | $0.00 | 185,000 | D | A |